Grinders aren't too heavy to shift, they just slide on your bench top? I really can't comment on the Vario, from what I've read it is a good choice, but imo the SJ would still have consistently better performance with less need to potentially groom the puck or worry so much about distribution. I'm not sure how much reviewers actually mention the ease of getting a good shot, they usually assume that one will do everything necessary to fix the deficiencies such as WDT. Fair enough if you go to the trouble of WDT each shot (time consuming) then the Vario may perform just as well, but that's a lifestyle choice you have to make. Unlike the Italian espresso machines, Mazzers are really built like a tank. If anything all you would have to do is replace the burrs, quite cheaply, and chuck a couple of kgs of supermarket beans through the new burrs to run them in and you'll have a great grinder that should last forever.